package com.tang.lease.web.admin.service.impl;

import com.tang.lease.common.minio.MinioConfiguration;
import com.tang.lease.common.minio.MinioProperties;
import com.tang.lease.web.admin.service.FileService;
import io.minio.*;
import io.minio.errors.*;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.web.multipart.MultipartFile;

import java.io.IOException;
import java.security.InvalidKeyException;
import java.security.NoSuchAlgorithmException;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.UUID;
import java.util.logging.SimpleFormatter;

@Service
public class FileServiceImpl implements FileService {

    @Autowired
    private MinioProperties minioProperties;

    @Autowired
    private MinioClient minioClient;



    @Override
    public String upload(MultipartFile file) throws ServerException, InsufficientDataException, ErrorResponseException, IOException, NoSuchAlgorithmException, InvalidKeyException, InvalidResponseException, XmlParserException, InternalException {


            boolean bucketExists =
                    minioClient.bucketExists(BucketExistsArgs.builder().bucket(minioProperties.getBucketName()).build());
            if (!bucketExists){
                minioClient.makeBucket(MakeBucketArgs.builder().bucket(minioProperties.getBucketName()).build());
                minioClient
                        .setBucketPolicy(SetBucketPolicyArgs.builder().bucket(minioProperties.getBucketName())
                                .config(createBucketPolicyConfig(minioProperties.getBucketName())).build());
            }
            String fileName = new SimpleDateFormat("yyyyMMdd").format(new Date()) + "/"+
                    UUID.randomUUID() + "-" +file.getOriginalFilename();
            minioClient.putObject(PutObjectArgs.builder().bucket(minioProperties.getBucketName())
                    .object(fileName)
                    .stream(file.getInputStream(),file.getSize(),-1)
                    .contentType(file.getContentType()).build());
            String url = minioProperties.getEndpoint() + "/" +minioProperties.getBucketName() + "/" +fileName;

            //return url;
            return String.join("/",minioProperties.getEndpoint(),minioProperties.getBucketName(),fileName);


    }

    private String createBucketPolicyConfig(String bucketName) {

        return """
            {
              "Statement" : [ {
                "Action" : "s3:GetObject",
                "Effect" : "Allow",
                "Principal" : "*",
                "Resource" : "arn:aws:s3:::%s/*"
              } ],
              "Version" : "2012-10-17"
            }
            """.formatted(bucketName);
    }
}
